Answer:There's now been a number of studies that have examined this question -- and based on the studies that have been done to-date, it doesn't appear that abortion increases risk of breast cancer. Of course, you have to realize that in this country, it's not always very easy to get good answers from women regarding their abortion history. But there have been studies done in Europe, where it is legal to have an abortion and even in those countries where reporting would be complete, and there are linkages, the studies do not suggest that abortion increases risk.